D3 layout to visualize distance variables using a continuous Hilbert space-filling space.
npm install d3-hilbertd3-hilbert
==============
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D3 layout to visualize distance variables using a continuous Hilbert space-filling curve. Here's an example.
See also d3-morton.
If you are looking for a module that also performs rendering, please see hilbert-chart.
``js`
import d3Hilbert from 'd3-hilbert';`
or using a script taghtml``
thenjs`
const myRange = { start: 4, length: 9 };
d3.hilbert()
.order(2)
.layout(myRange)
| Method | Description | Default |
| ------------------ | -------------------------------------------------------------------------------------------------------------------------- | ------------- |
| canvasWidth([number]) | Getter/setter for the length of each side of the hilbert square canvas. | 1 |
| order([int]) | Getter/setter for the extent of the hilbert curve domain, determined by 4^order. The maximum safe order is 26, due to the JS numbers upper-boundary of 53 bits. | 4 |{start:
| simplifyCurves([boolean]) | Getter/setter for whether to simplify the resolution of the curve to the most canonical 2-bit boundary that fits the range integral. For example, in a 2nd order curve (16 values), a range from 4 to 11 can be simplified from 8 vertices to 2 (each filling a square with 4 values), on the lower quadrants. This simplification greatly reduces the number of vertices in the curve and improves the calculation and rendering performance, specially for high-order ranges which tend to fall on bit boundaries, such as the case of IP address routes. | true |
| layout(rangeObject) | Extends the input rangeObject (syntax: ) with 3 additional properties defining the hilbert curve: .cellWidth (number defining the side length of each square cell and essentially the thickness of the line, according to the canvasWidth), .startCell ([int,int] the x,y coordinates of the starting cell) and .pathVertices (Array of vertices, specified in terms of characters indicating movement direction: UDLR (Up, Down, Left, Right)). | |[x, y]` coordinates of the requested value. Throws an error if the value is outside the boundaries of the current hilbert domain. | |
| getValAtXY(num, num) | Returns the reverse translated value on the curve domain found at coordinates x,y, relative to the canvasWidth. | |
| getXyAtVal(num) | Returns the
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